# File lib/fog/monitoring/openstack/models/alarm_definitions.rb, line 26
        def find_by_id(id)
          cached_alarm_definition = detect { |alarm_definition| alarm_definition.id == id }
          return cached_alarm_definition if cached_alarm_definition
          alarm_definition_hash = service.get_alarm_definition(id).body
          Fog::Monitoring::OpenStack::AlarmDefinition.new(
            alarm_definition_hash.merge(:service => service)
          )
        end